Home / 20,327.36-28,035.96-13,610.84

Finding the Fourth Proportional to 20,327.36, 28,035.96 and 13,610.84

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Solution

The fourth proportional to 20,327.36, 28,035.96 and 13,610.84 is: 18,772.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.36 : 28,035.96 = 13,610.84 : x
  2. Step 2: Convert to fraction form
    20,327.36/28,035.96 = 13,610.84/x
  3. Step 3: Cross multiply
    20,327.36x = 28,035.96 × 13,610.84
  4. Step 4: Simplify right side
    20,327.36x = 381,592,965.81
  5. Step 5: Solve for x
    x = 381,592,965.81/20,327.36
  6. Step 6: Final answer
    x = 18,772.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.